CppCon 2020 Template Metaprogramming: Type Traits Part 1 Jody Hagins jhagins@maystreet.com coachhagins@gmail.com ## CppCon 2020 Template Metaprogramming: Type Traits Introduction ## I ntended Audience Not necessarily beginner to C++, but beginner to traditional template metaprogramming techniques • Type traits part of standard library for ~10 years ## I ntended Audience • Beginner/Intermediate • Gentle Not necessarily beginner to C++, but beginner to traditional template metaprogramming techniques • Type traits part of standard library for ~10 years • Fundamentals have been in use for ~20 years ## I

# Java 应用与开发 JSP (Java Server Page) 王晓东 wangxiaodong@ouc.edu.cn 中国海洋大学 December 3, 2018   ## 大纲 ## 接下来… ## JSP 基本概念 JSP(Java Server Page)，即 Java 服务器页面。 JSP 是 Servlet 的扩展。 JSP 将使用 Java 类编写动态 Web 组件的方式转变为使用文本编写（采用标记型语法和过程性语法混合），降低了开发的难度。 指令不会产生任何的输出到当前输出流中。 ## JSP 指令 page 指令，用于定义 JSP 页面级的其他元素特征。 include 指令，用于嵌入另一个文本文件的内容到本页面。 ▶ taglib 指令，用于引入第三方 JSP 扩展标记类库。 ## JSP 指令的语法 <%@ 指令名 属性名="值" 属性名="值" %> ## page 指令 page 指令定义应用于整个页面的属性。

Database Page Header ..... 5 4. Database Header Page — Type 0x01 ..... 7 5. Page Inventory Page — Type 0x02 ..... 14 6. Transaction Inventory Page — Type 0x03 ..... 16 7. Pointer Page — Type 0x04 ..... 18 8. Data Page — Type 0x05 ..... 21 8.1. Record Header ..... 22 8.2. Record Data ..... 24 8.3. A Worked Example ..... 24 8.4. Examining The Data ..... 28 8.4.1. Compressed Data .... 4.3. Null ..... 31 8.4.4. NULL status bitmap ..... 31 9. Index Root Page — Type 0x06 ..... 36 10. Index B-Tree Page — Type 0x07 — YOU ARE HERE ..... 41 10.1. B-Tree Header ..... 41 10.2. Index

file and default title block ..... 3 Output file ..... 3 Theory of operations ..... 4 Basic page layout items properties: ..... 4 Coordinates definition ..... 4 Reference corners and coordinates: Format symbols: ..... 8 Multi-line texts: ..... 10 Multi-line texts in Page Setup dialog: ..... 11 Constraints ..... 12 Page 1 constraint ..... 12 Text full size constraint ..... 13 Invoking PI_Editor Pl_Editor is a page layout editor tool to create custom title blocks, and frame references. The title block, associated to frame references, and other graphic items (logos) is called here a page layout. Basic

file and default title block ..... 3 Output file ..... 3 Theory of operations ..... 4 Basic page layout items properties: ..... 4 Coordinates definition ..... 4 Reference corners and coordinates: Format symbols: ..... 8 Multi-line texts: ..... 10 Multi-line texts in Page Setup dialog: ..... 11 Constraints ..... 12 Page 1 constraint ..... 12 Text full size constraint ..... 13 Invoking PI_Editor Pl_Editor is a page layout editor tool to create custom title blocks, and frame references. The title block, associated to frame references, and other graphic items (logos) is called here a page layout. Basic

file and default title block ..... 3 Output file ..... 3 Theory of operations ..... 4 Basic page layout items properties: ..... 4 Coordinates definition ..... 4 Reference corners and coordinates: Format symbols: ..... 8 Multi-line texts: ..... 10 Multi-line texts in Page Setup dialog: ..... 11 Constraints ..... 12 Page 1 constraint ..... 12 Text full size constraint ..... 13 Invoking PI_Editor Pl_Editor is a page layout editor tool to create custom title blocks, and frame references. The title block, associated to frame references, and other graphic items (logos) is called here a page layout. Basic

1 Input file and default title block 2 2.2 Output file 2 3 Theory of operations 3 3.1 Basic page layout items properties: 3 3.2 Coordinates definition 3 3.3 Reference corners and coordinates: 4.1 Format symbols: 7 4.2 Multi-line texts: 9 4.3 Multi-line texts in Page Setup dialog: 10 5 Constraints 11 5.1 Page 1 constraint 11 5.2 Text full size constraint 12 6 Invoking Pl_Editor 14 Pl_Editor is a page layout editor tool to create custom title blocks, and frame references. The title block, associated to frame references, and other graphic items (logos) is called here a page layout. Basic

1 Input file and default title block 2 2.2 Output file 2 3 Theory of operations 3 3.1 Basic page layout items properties: 3 3.2 Coordinates definition 3 3.3 Reference corners and coordinates: 4.1 Format symbols: 7 4.2 Multi-line texts: 9 4.3 Multi-line texts in Page Setup dialog: 10 5 Constraints 11 5.1 Page 1 constraint 11 5.2 Text full size constraint 12 6 Invoking Pl_Editor 14 Pl_Editor is a page layout editor tool to create custom title blocks, and frame references. The title block, associated to frame references, and other graphic items (logos) is called here a page layout. Basic

each page as required. A page’s template can be switched for another at any time. You’ll find the site’s templates in mysite/templates. If you didn’t change the automatically-created home page’s template to define sections in an HTML template that will be filled with content from the database when the page is rendered. This content is edited using Django CMS’s frontend editing mechanism, using Django template we’ve encountered so far is different for every page. Sometimes though you’ll want to have a section on your website which should be the same on every single page, such as a footer block. You could hard-code

of a certain type. The variable's type is called static type, the location's type is called dynamic type. If the static type is not the same as the dynamic type, it is a super-type or subtype of of the dynamic type. An identifier is a symbol declared as a name for a variable, type, procedure, etc. The region of the program over which a declaration applies is called the scope of the declaration mod nil not notin object of or out proc ptr raise ref return shl shr static template try tuple type using var when while xor yield Some keywords are unused; they are reserved for future developments